cn.hutool.core.map

Class CustomKeyMap<K,V>

java.lang.Object

cn.hutool.core.map.MapWrapper<K,V>

cn.hutool.core.map.TransMap<K,V>

cn.hutool.core.map.CustomKeyMap<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

Serializable, Cloneable, Iterable<Map.Entry<K,V>>, Map<K,V>

Direct Known Subclasses:

FuncKeyMap

public abstract class CustomKeyMap<K,V>
extends TransMap<K,V>

自定义键的Map，默认HashMap实现

Since:

4.0.7

Author:

Looly

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

Fields inherited from class cn.hutool.core.map.MapWrapper

DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
CustomKeyMap(Map<K,V> emptyMap) 构造 通过传入一个Map从而确定Map的类型，子类需创建一个空的Map，而非传入一个已有Map，否则值可能会被修改

Method Summary

Modifier and Type	Method and Description
protected V	customValue(Object value) 自定义值

Methods inherited from class cn.hutool.core.map.TransMap

compute, computeIfAbsent, computeIfPresent, containsKey, customKey, get, getOrDefault, merge, put, putAll, putIfAbsent, remove, remove, replace, replace

Methods inherited from class cn.hutool.core.map.MapWrapper

clear, clone, containsValue, entrySet, equals, forEach, getRaw, hashCode, isEmpty, iterator, keySet, replaceAll, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

CustomKeyMap

public CustomKeyMap(Map<K,V> emptyMap)

构造
通过传入一个Map从而确定Map的类型，子类需创建一个空的Map，而非传入一个已有Map，否则值可能会被修改

Parameters:

emptyMap - Map 被包装的Map，必须为空Map，否则自定义key会无效

Since:

3.1.2

Method Detail

customValue

protected V customValue(Object value)

Description copied from class: TransMap

自定义值

Specified by:

customValue in class TransMap<K,V>

Parameters:

value - 值

Returns:

自定义值